Physics: Motion & Forces

an object's change in position over time when compared with a reference point.

• Motion
• Force
• Gravity
• Friction

an object that appears to stay in place in relation to an object being observed for motion.

• momentum
• velocity
• reference point
• mass

the rate that an object moves, depends on the distance & the time taken to travel that distance

• speed
• gravity
• force
• energy

the speed of an object in a particular direction.

• speed
• motion
• velocity
• magnitude

rate at which velocity changes. an object accelerates if its speed, direction, or both change.

• acceleration
• drag
• position
• weight

 the location of an object compared to a reference point.

• position
• mass
• thrust
• balanced force

examples; up, down, left, right, North, South, East , West.

• direction
• gravity
• lift
• inertia

when velocity decreases and the speed slows down.

• deceleration
• acceleration
• momentum
• terminal velocity

acceleration in a circular motion.

• centripetal acceleration
• friction
• net force
• kinetic energy

a push or pull; all forces have both size and direction. 

• force
• inertia
• projectile motion
• newton (N)